Arankowsky-Sandoval G, Aguilar-Roblero R, Prospéro-García O, Drucker-Colín R
Brain Res. 1987 Jan 1;400(1):155-8. doi: 10.1016/0006-8993(87)90664-0.
It has been shown that REM sleep duration and ponto-geniculo-occipital (PGO) spike density can be enhanced by auditory stimulation. The purpose of this study was to determine whether this effect is restricted to the auditory sensory modality or whether somatic stimulation can produce similar effects. Cats implanted with electrodes for recording the sleep-wake cycle were additionally prepared with clip electrodes placed in the neck for somatic stimulation. Such stimulus was applied at the beginning and throughout each REM sleep period. The effect of this procedure was compared to a similar period when no stimulus was applied. The results showed that somatic stimulation induced a significant increase in REM duration (60.2%) and PGO spike density. Since the effects of somatic stimuli are identical to auditory ones, it is suggested that all sensory modalities may share the property of influencing the mechanisms which regulate the maintenance of REM sleep. Such mechanisms are discussed in terms of an increase in the excitability levels of polymodal medial reticular neurons.
研究表明，听觉刺激可延长快速眼动睡眠（REM）的时长并增加脑桥-膝状体-枕叶（PGO）峰电位密度。本研究旨在确定这种效应是否仅限于听觉感觉模态，还是躯体刺激也能产生类似效果。给植入了记录睡眠-觉醒周期电极的猫额外准备了置于颈部用于躯体刺激的夹式电极。在每个快速眼动睡眠期开始时及整个期间施加这种刺激。将此操作的效果与未施加刺激的类似时间段进行比较。结果显示，躯体刺激使快速眼动睡眠时长显著增加（60.2%），且PGO峰电位密度也增加。由于躯体刺激与听觉刺激的效果相同，因此表明所有感觉模态可能都具有影响调节快速眼动睡眠维持机制的特性。本文从多模态内侧网状神经元兴奋性水平的增加方面对这些机制进行了讨论。
